...ummm, yeah. You won't be able to ride that motor on the street without a lot of extra expense, including insurance. It's waaaay over the 50 cc limit and trust me, the police will be all over you.
It's one thing to go with a 66 cc Chinese motor but they are externally identical to the 50's. A big 4 stroke like that will get you into a lot of trouble. Fast.